mainbody {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background-color: #50cf77;
  background-image: url(~assets/images/start_loading.svg);
  background-repeat: no-repeat;
  background-position: center;
  background-size: 80px 80px;
  z-index: 9999;
}
